Most listings are in the $20's per square foot per year. The Western San Diego submarket is seeing a decrease in rates. In the last 3 months, the median rate fell $7 per sqft per year. That's a 19% decrease in rent.
Compared to the rest of the San Diego market, the Western San Diego region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 67 listings have been listed, so you'll want to check back regularly for new listings. About 6% of the listings in the Western San Diego are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,790 sqft. Most buildings in this area are around 2 stories. Most buildings in this region were built in 1980 and are Class B.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Manufacturing is the dominant industry in this area. Most of the folk of Western San Diego work from home. Commuting between 30 and 45 minutes a day is the norm for those who opt to reside in this part of town.